Herod , just to say your memory is correct .. Was taught in '74 to climb at 320kts IAS to FL 280 then at M0.80 upwards . FL280 being the crossover point . Had to wait 'til '82 to fly with Capt. Bill . Much later the ATP was akin to a 'Van in the flare , Those massive props gave you an effect of a blown wing , pull power back too early and propwash V squared , stopped the lift immediately , nose dropped and wing stopped flying , Thus Massive heave with feet on the dashboard.
Similar effects on 733 family . Big fan effectively blew the flaps , thus power reduced after round out commenced .
732s , S111s etc. power could be reduced before flare , wing kept flying [ Non blown wing/flaps ] as intake air came into engine well before the wing and exhaust air out well aft of the wing . Thus wing flew and a/c ' floated ' until momentum and lift decayed .
rgds condor .